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v3.20.1

Segment information - Additional Information (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Retail [Member] |  |
Segment Reporting Information [Line Items] |  |
Depreciation, Depletion and Amortization | $ 2,364,994 | $ 2,019,462
Bulk [Member] |  |
Segment Reporting Information [Line Items] |  |
Depreciation, Depletion and Amortization | 3,795,320 | 3,387,592
Services [Member] |  |
Segment Reporting Information [Line Items] |  |
Depreciation, Depletion and Amortization | 125,306 | 28,386
Manufacturing Units [Member] |  |
Segment Reporting Information [Line Items] |  |
Depreciation, Depletion and Amortization | $ 922,027 | $ 1,598,794

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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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Balance Type: | debit
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Period Type: |